RT100AS15R0KB Equivalent & Substitute Parts

Part Overview

The RT100AS15R0KB is a 15 Ohm, 100W wirewound potentiometer manufactured by Vishay Sfernice, designed for panel mount applications with a 1-turn adjustment mechanism and solder lug termination. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance, repair, and new design implementations where this specification remains required.

Substiute Parts

RT100AS15R0KB

Vishay SferniceIn Stock: 1042RT100AS15R0KB Datasheet

Current PartRFQ

RKS15RE

OhmiteIn Stock: 970RKS15RE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT100AS15R0KB is determined by strict equivalence across the following critical parameters:

• Resistance value: 15 Ohms (exact match required)
• Power dissipation capability: 100W minimum
• Resistive element type: Wirewound construction
• Adjustment range: 1-turn potentiometer
• Termination method: Solder lug connections
• Mounting configuration: Panel mount design
• Rotation angle: 300° mechanical travel
• Resistance tolerance: ±10%

The RKS15RE from Ohmite satisfies all mandatory electrical and mechanical substitution criteria. Differences in actuator geometry, taper characteristic, and bushing specifications do not affect functional equivalence for applications requiring the specified resistance, power, and adjustment characteristics.

Parameter Comparison

Engineering Selection Recommendations

The RKS15RE represents a direct functional substitute for the obsolete RT100AS15R0KB. Both components meet identical electrical specifications: 15 Ohm resistance at ±10% tolerance with 100W power dissipation capability using wirewound construction. Both employ solder lug termination, 1-turn adjustment, and 300° rotation angle suitable for panel mount applications.

The RKS15RE maintains active product status with ROHS3 compliance and EAR99 export classification, ensuring availability and regulatory alignment for current procurement cycles. The RT100AS15R0KB's obsolete classification necessitates transition to the RKS15RE for new designs and ongoing system support.

Physical differences in actuator geometry (flatted vs. round), actuator length (0.875" vs. 0.984"), and bushing thread specification (3/8-32) require mechanical verification during integration. These dimensional variations do not affect electrical performance but may require panel cutout or mounting bracket modifications.

Frequently Asked Questions (FAQ)

Q: Can the RKS15RE directly replace the RT100AS15R0KB in existing assemblies?

A: Electrical substitution is direct. Mechanical compatibility requires verification of panel mounting dimensions, actuator clearance, and bushing thread engagement. The RKS15RE features a flatted actuator and different length specification compared to the round actuator of the RT100AS15R0KB.

Q: Are there compliance differences between these components?

A: The RT100AS15R0KB is classified as obsolete with no current RoHS status documented. The RKS15RE is ROHS3 compliant and carries EAR99 export classification, meeting current regulatory requirements for new applications.

Q: What electrical parameters must match for substitution?

A: Resistance value (15 Ohms), power rating (100W), tolerance (±10%), resistive material (wirewound), number of turns (1), termination style (solder lug), and rotation angle (300°) must all match exactly. These parameters define functional equivalence.

Q: Are there inventory considerations for this substitution?

A: The RT100AS15R0KB has 972 units in stock as new original inventory. The RKS15RE has 873 units available. Both components are currently in stock, enabling immediate procurement decisions.

Q: Does taper specification affect substitution suitability?

A: The RT100AS15R0KB does not specify a taper characteristic, while the RKS15RE is designated as linear taper. For applications requiring specific resistance-to-rotation relationships, taper specification must be evaluated against circuit requirements. Linear taper is standard for general-purpose potentiometer applications.